8 books
The Principles of Descaretes' Philosophy - Scholar's Choice Edition
The Philosophy of Music - Scholar's Choice Edition
The Philosophy of Music; A Comparative Investigation Into the Principles of Musical Aesthetics - Primary Source Edition
The Philosophy of Music; A Comparative Investigation Into the Principles of Musical a Sthetics
The Philosophy of Music; A Comparative Investigation Into the Principles of Musical Aesthetics
The Principles of Descartes' Philosophy
The Principles of Descaretes' Philosophy
The Philosophy of Music